Hydraulic controller for carriages having axial recoil.



' Patented June 4, 190i. A. KAMPF. HYDBAULH) CONTRGLLEB FDR CARRIAGES HAVING AXIAL RECOiL.

(A lication filed Aug. 25, 1896.)

4 Sheena-Sheet I.

(No Modal.)

P aknted June 4 i901.

A. KAMPF. HYDRAULIC CONTROLLER FDR CARRIAGES HAVING AXIAL REGOIIL.

(Applicationflled Aug. 25, 1898.)

4 smaks'nw 2 (No Model.)

Patented Juno 4, [90L A. KAMPF,

HYDRAULIC CONTRQLLER FGRCARRIAGES HAVING AXIAL RECOIL.

(Application filed Aug. 26, 1896.)

' 4 Sheets-Shut 3.

(No Model.)

m. 675,386. Patented June .4, mm. A. KAMPF.

HYDRAULIC CUNTRULLER FOB CABRIAGES HAVING AXIAL RECOIL.

(Application med Aug. 25, 1596.) v (No Fflodal.) 4 Sheets-Sheet 4.

NITED STATES AUGUST KAMPF, OF

urine.

HYDRAULIC CONTROLLER FOR CARRIAGES HAVING AXlAL RECOIL.

I SPECIFICATION firming part ef'Letters Patent No. 675,386, dated June 4, 1901.

Application filed August 25, 1896. Serial No. 603,905. (No model.)

To all whom, it may concern-.-

Be it known that 1, AUGUST KAMPF, a subject of the Emperor of Germany, and a resident of Magdeburg, in the Kingdom of Pruss'ia, Germany, have invented certain new and nsefullmprovements in Hydraulic Controllers for Carriages Having Axial Recoil, of which the following is a specification; The invention relates to those carriages in to which the gun under the action of the shot recoils inthe direction of its axis and whereinone or more hydraulic brakes regulate the rapidity and extent of this movement and at the same time serve to return the gun to its original or battery position and to hold it there until the next shot.

My invention relates to certain features of novelty, which will hereinafter be fully described, and particularly pointed out in the claims. 1

In the accompanying drawings, Figures 1,

7 section on the line efof Fig. 4, and Fig. 4 a

. section on the line 9 h of Fig. 2. Figs. 5, 6,

and 7 are views corresponding, respectively,

to Figs. 1, 2, and 3, but showing the positions assumed by the several parts after a shot has been --fired and recoil taken place and when 3 the gun has been brought back into battery position by means of the brake-cylinder, Fig. 5 being a-section on the line N 0, Fig. 12.

Fig. 8 shows the position of the main valve under the action of the shot; and Fig. 9 is a section on the line i kof Figs. 1 and 5, show ing an arrangement, to be hereinafter described, which is only used for practice with .the gun. Fig. 10 shows the parts of the improved controller assembled and in connec tion with the gun. Fig.11 shows a section 5 through the..brake-cylinder on the. line Zm, Fig. 10. Fig. 12 is a detail sectional view showing passage-way 26 and connections.

and communicates with the brake-cylinder 12, which is secured to the carriage-frame through the medium of pipes 9 and 10. (See Fig. 10.) Pipes 9 and 10 are connected together by a turning box 11, secured to the pivot-block. 'lhe'brake-cylinder 12 is provided on its inner surface in the usual manner with grooves 27 for the passage of the ,bralre fluid, (see Fig. 11,) and the piston 13,

which works in said cylinder, is secured to the sliding part of the carriage. Before the shot is fired and when the gun is in battery position, as shown in Fig. 10, the parts of the controller take the positions shown in Figs. 1 to 4. Pipe 14: is at all times in communication with the acoumulator, and the accumulator pressure is constantly communicated through pipe 14, channel 15, around valve 6, through pipe 17, lifting the backpressure check-valve 3, and beneath the main valve, which it keeps normally closed with the assistance of the spring 18. The spring 2, working upon the backflow-valve 2, is

strong enough to keep said valve seated against the accumulator; Likewisethe aocumulator presses upon the upper pistons of valves 5 and 6, which are of somewhat greater section than the valve-seats, so that these valves, assisted by the -springs working upon them, remain normally closed. The valve 'duced by firing is greater than the pressnreof the accumulator, it opens the valve l and the fluid escapes through thewaste-pipe 19. the same time the valve 1 presses upon the fluid confined above the valve 3, and thereby closes said valve 3, so that the pressure cannot dissipate itself toward the accumulator.

Through this impulse the pressure of the,

sp 'ng upon valve 2, Fig. 8, is also overcome,

so that said valve 2 opens and permits the flnidover the valve to pass through pipe 20 into channel 21, (see Fi i 1,) veive i am! through pipe 22, and oventoaiiy to the weete pipe 19. A3 soon as the proseure of recoil iii oistributeoi through pipe 19mm part-s again.

*1 take the posiiione shown in 1 to To bring the gmi back into bait-Levy iwsitigm eftora shot is delivered, Lhe ievei '1 is bro u into the yosit ien shown in Fig and ii, at wiiioh time by T685931 oi the arrangement of tho ieverprojoetions 23, 24, zine 25 maxi tho relative lengths of the veivewodo it. wiii foiiow that the rod of valve 4 will be i-eieasefi by projection 23, and valve 4 will be aiiowed to oioso before projections 24 or reach the stems of valves 5 G and open said vaives 5 and 6, at "which time communication between i-ho chamber of valve 53 and the wasiiopi 19 is closed. A obminuedi turning of lever 7 toward the iefVozmees mojeohioo to open alve 5, wi'ioi'onpon no aoenmummy-pressure ai ltoi'e at once the ehazmoi 21 beneath waive and reinforces the olosiugspring of this mivo, At the some iime it passes through the pipe into the chamber of valve 2 Remix fiho valve 1, at which time the-entire section of valve 1 Wiii be subject to the acou mommy-pressure, since said pressure is 351 :r'eady communicated to vaivo ehzunbet 3 through the pipe 17, which is in constant, 30m in unicziaioz'i with the accumulator. Said valve Li wili therefore be held cioseii by a force oer-- responding to the aoemnoiator-pressum eppiied to its entire erosseeeiion in addition to ite spring. A further movementof lever 7' causes projection 25 Lo come upon the stem of valve 6, which is shorter than the stem of valve 5, and open said. valve 6.. Theme-i1:- mulzitoi pressuro now passes from pipe 14: direetiy past the veive 6 into the channel 26 through gipo i), turning joint 11;, one, pipe 10 to the bi'ake-oyiiedor 12. Since the your Wall of the brake-piston 13k: iuteniiouoiiy greater than the forward surface, iho'floiti.

which is passed back of the piston ihrongh the brekooyiinder channels 27 presses the gaistou forward, and inasmuch, as this is con mooted with the upper part; 0!? the carriage shoves the some, together with the gun, back into the battery position. 15 the iover 715 now moved to the right again, vaive 6 first closes itself, whereby connection between tho ioi'ake-oyiinder and the aeoomuiator is cutoff, Then the valvifi closes; iiseif, whereby the pressure in the ohomiior of vziive 2 is remove so that the valve 1, which now smnds oniy in communication with the acoumuiatoi prew sure through pipe 1'7, wiii only be loaded CO1 respondingiy to its under surface, The can-- riage andoheek monow in position for the next; shot.

If ihe gun is to be ailoweai to siiio i Withoufi firing, the lever '2 left in iis 3 tion and the valve "28, 9, is opened, The iiuid expeiied by the brake-piston then passes through ciiemleis 2G, 29, 2:116 (iieect into the w stepipo if), The "return ioimttery poeiiion follows, as heretofore.

Having thu fiesori'oeii my invention, bile foiiowing is wha I claim new iiierein and desire iao seezxie by Letters "Pziiheni:

1. For use in eormociion with a, recoil gimoe/vria-ge, having a bm'ke'oyiinder, mlopted Lo Mice up recoil and return the gun; a fiuifips'essn're eontroiiorixaving fii'Eid-ZMLES6 3S for oomo'xuniemion. with the rieemnoiator, for oomumnioeiion with the brake-oyiindos", and for a waste-pipe of Siniii under pressure of .i'eooii; a main valve noirmaiiy ioade. byepringr iiuid pressure to hold. the ox-eke'piston out, but; yieiiiing 13o pressure .inc'iuoefi by reooii my} pozmiiaiiog fluid 11o eseegio from the brakeoyiindez" to She Noam-pipe pz-issagog a imciiiiow-a 'nive ioceiedto permit escape of the fluidbeneziih iho main vaive at Mme of recoil, :mci a: cheek-valve in the 1 3k3iiml11ifiOF- pipe \viiieii closes in time recoil, to out off: back pressure through said pipe, as expiaiinezi.

2. in combination Wiilh H,- hydraulic (Nb imoiler im 'ing iiie brakwoyiimiez' pipe, the aooumuietorpressure pipe and the wasie pipe and having "the main waive I normaiiy holding Joe gun in battery position, bmwyieklim'; to pressure induced 2 permitting escape of pressure ifrom beneath valve 1; We QiiOCC--V?1Vfi preventing bee-i:

0y i'eoo'ii; the valve pressure in the'noeumMotor-pressYe pipe; passage eommunieiit-ing bemveon the Ghiiiiloer of vzi-ive and the waste-pipe,- m'ic'i com "ia-inirig a valve a. passage heme-zen maid valve-chamber and Hie aeoumizietoxwpipe; a

passage i...\e\i'eeo tho bmke-oyiinder and omnuiator and cozimioing a valve G; 21115. a controliingiever imviog pmjeemons ioeaied to open valve o movement of the Ieverio one direction, mid to permib the'vaive i to close and then successively open via-Ives 5 and 6 by movement in the vo direction; sob.

etzmtieiiy as set foiia'n. v.

3. In a hydrmiiie omitroiier oi? the chemoter described, a, 21min vaive in the waste-moo, having :1 piston, pipe normaiiy eommimiezet' iug econumietzir-pressu:o to a, portion of iim main va-iveo section, a passage ilormaliy closed by a valve 5 for eommxmiozaeiaig acoumuiator-pressare to the remaimiev of the main vzdves section, a passage noruezziiy closed by a. valve 6 for-deiivering fihe anew muimioz -pi'essmje for romiiiigout the gun, and means for opening said veives'o anti 6 eueoeesiv'eiy, whereby the main veivo is first e iomiefi against possibility of opeoing, and the pressure is then supplied for i-unnmg'out the gun, as expiained In testimony whereof I have siguedfmy" mime Hi this speeificoision in the presence of two subscribing witnesses.

1 AUG TS?" KAMPF.

Wiinossos; V.

J ULE US M UTE, EMIL KALLNECKER.

EKG 

